Source for "YouTube embed"

// ==UserScript==
// @name           YouTube embed
// @include        *
// @exclude        http://youtube.com/*
// @exclude        http://www.youtube.com/*
// ==/UserScript==
//:::::Shu::::::

var e=document.getElementsByTagName('a');
var pushed=new Array();
for(i=0;i<e.length;i++)
{


//the next line detects signatures on invision forums ONLY! remove the 2 first slashes to use.
//	if(e[i].parentNode.className=='signature') continue;

	if(e[i].href.match("http://(www\.|)youtube\.com/watch"))
	{
		argus=e[i].href.substring(e[i].href.indexOf('?')+1).split('&');
		for(x=0;x<argus.length;x++)
			if(!argus[x].indexOf('v='))
				
				createVideo(e[i],argus[x].substring(2))
	}
}

function createVideo(e,tubelink)
{
if(!tubelink.match("[A-Za-z0-9_\-]{11}"))
	return;
if(pushed.indexOf(tubelink)!=-1){
	alink=document.createElement('a');
	alink.setAttribute('href','#shuTube_'+tubelink);
	alink.innerHTML=e.innerHTML;
	e.parentNode.replaceChild(alink,e);
	return;
}
pushed.push(tubelink);
tubeobj=document.createElement('object');
tubeobj.setAttribute('width','425');
tubeobj.setAttribute('height','350');
tubeobj.setAttribute('id','shuTube_'+tubelink)
tubeobj.innerHTML = '<param name="movie" value="http://www.youtube.com/v/"'+tubelink+'></param><param name="wmode" value="transparent"></param><embed src="http://www.youtube.com/v/'+tubelink+'" type="application/x-shockwave-flash" wmode="transparent" width="425" height="350"></embed>'
newline=document.createElement('br');
e.parentNode.insertBefore(newline,e);
e.parentNode.insertBefore(tubeobj,newline);
newline=document.createElement('br');
e.parentNode.insertBefore(document.createElement('br'),tubeobj);
}